Car-door lock.



T. H. WATTS. GAB DOOR LOCK.

APPLICATION FILED JAN. 18. 1911.

'Patented Mar.14,1911.

mfr( f1 unrrnn STATES PATENT OFFICE- THOMAS H. WATTS, or BFFALO, NEW Yomr CAR-Doon toert.'

, Application led January 18, 1911. Serial No. 603,271.

o all whom it may concern.: l

Be it known that I, THOMAS H. WA'rrs, a citizen ofthe United States, residing at Buffalo, in the county of Erie and State of New York, .have invented new and useful Improvements in Car-Door Locks, of which frame, as shown in Figs. 2 and 5, while its the following is a specification.

This invention relates to a car door lock and more particularly to that type ot' lock such as shown in Letters Patent of the United vStates No. 908,147, granted December 29, 1908.

1 It is the object of the-present invent-ion to provide a lock of this character which can be manipulated from the ground and which will securely hold the door in its closed position when locked and avoid interference with the same when unlocked and which can be built in the car as now constructed without requiring any material alteration in the same.

In the accompanying drawings: Figure 1 is afragmentary side elevation of a box freight car provided with my improved door lock. Fig. 2 is a vertical transverse section in line 2 2, Fig. 1. Fig. 3 is a fragmentary horizontal section taken in line 3 3, Fig. l. Fig. 4 is a fragmentary horizontal section taken in line 4 4, Fig. 1, hut showing the locking device in the position which it occupies when the door is unlocked and free to he moved into its open position. Fig. 5 is a fragmentary side elevation showing the means for pivotally supportingthe upper end of the locking shaft. Figs. G and 7 are fragmentary horizontal sections, on an enlarged scale, taken in lines (3 6 and 7 7, Fig. 2, respectively.

Similar letters of reference indicate corresponding parts throughout the several views. t

The parts of the box freight car which are shown in the drawings comprise a side wall 1 provided with a doorway or opening 2 in its side, and a horizontally land longitudinally sliding door 3 which is guided at/its upper and lower edges on guideways 4, 5'

ing an upright locking shaft 7. This shaft 1s arranged adjacent to the inner side of the path oi the car.- door and-is adapted to rock in a horizontal plane for which purpose the same is journaled at'its upper end in a bear' ing 8 secured to the adjacent part of the car specification of Lettersratent. Patented Mar. 14, 1911. i

lower part is journaled in abea-ring 9 which is constructed in the forni ofva clip, as shown in Figs. 2 and 6. Y

sha-tt is provided with two laterally projecting lockm'g lugs 10,10 which are adapted to be turned horizontally into their unlocking position in which they are arranged' par.

allel with the door and adjacent to the inner side of the path thereof or into a osition in which these lugs project otwar ly into their locking'position across the path of the car door. When the car door is closed, the locking shaft may be vturned so that its lugs engage crosswise with the rear-edge of the door, as shown in Figs. 1, 2 and 3, thereby preventing the door from being opened', but

Aeffected by a mechanism which is so constructed that it also forms part of the means whereby the locking shaft may be sealed'or.

locked in its operative position and opening of the ear door is prevented without detection. 'lhe preferred means for this pur pose comprise a handle or hand lever 12 which is pivotfed at-,its inner end by a-hori zoutal transverse pin- 13 to an operating lug Near its upper and lowerends the locking A '14 projectinglaterally from the lower end of the locking shaft so that the hand lever is capable of turning with the locking shaft but is free to swing vertically independently of the shaft.

Whileturning the locking shaft and lugs inte and out of their operative position the hand lever is arranged horizontally, as shown hy detted lines in Figs. 1 and 2, whereby the 'operator is able to' obtain' a powerful leverage on the shaft and open or close the same with ease notwithstanding that the shaft may work hard inits bearings lor ice shou d affect the journals of the shaft. -Vhen the locking shaft is swung into its open position the hand lever While still inits horizontal position enters a recess 15 a'rranged in the side wall of the car body adjacent to the inner side of the path of the door, as shown by dotted lines in F ig. l and by full'lines in Fig. 4, which recess forms a lateral extension 'of the pocket in which the shaft is journaled. After the handleA has been turned outwardly while in ahorizontal position with the locking shaft for engaging the locking lugs with the rear edge of the door this handle is turned downwardly inde` pendently of the rock shaft so that itassuines a vertical pendant position, as shown in Figs. 1 and 2. Upon thus swinging the hand lever downwardly a socket 16 in the same receives a sealing lug 17 which is secured to the adjacent part of the side wall on the inner side of the path of the car door.

The hand lever and sealing lug may be secured to each other byv any suitable means so as to prevent tampering therewith by unauthorized persons, the means -for this purpose sliown in the'drawings, Figs. 1, 2 and 7,

consisting of a sealing Wire 18 which is passed to registering openings in the hand lever and the sealing lug and a seal 19 connecting the ends ofthis wire.

5 My improved locking device is arranged hold the door and prevent unlawful entrance I 10 the locking device always in its working conto the ear and the same can also be producedl andinstalled at comparatively low cost. or have become tight by reason of warping or twistin of the car body or in case rainA I claim as my inventionz:

1. The combination of a car havingia horizontally sliding door, an' upright shaft journaled on the car'adjacent'to the inner side of the path of the 'door and provided with a l laterally projectingv locking lug adapted tobe moved lnto `and out of the path ofthe door upon turning the shaft, anda hand lever pivotall mounted on said shaftso as to be capa le of turning horizontally with the shaft and also Swingin vertically independently of said shaft, an means for interlocking said hand lever in a vertical position with the car body when the .shaft is turned so that the locking lug pro-l jects across the path .of the door. Q

2. The combination of a car having ahorizontally sliding door, an 'upright locking shaft journaledon the car adjacent t'o the inner side of the path of the door ,and provided with a laterally projecting locking lug adapted to be moved intoia'nd out of the path ofthe doorupon turning the shaft,and a hand lever pivotally mounted on said shaft so as to be capable of turning horizontally with the shaft and also Swingin vertically independently of said shaft, an va locking -lug arranged on the car body below sai shaft. and adjacent to ythe inner side-,of the car body" and capable of being engaged by said hand lever' upon turning the shaft so oeking'v I that its locking'lug projects aerosskthe pathv i of said door1-v and the hand lever is swung into a vertical'pendant position relatively to said shaft.

fitness my hand this 14th day of J anuary,1911. l 'THOMAS H. WATTS.

1V itnesses:

THEO. L. Yori, ANNA HEIGIS. 

